Forum Discussion
Jfet
Apr 30, 2015Explorer
Another way to stiffen your walls is to use rigid 1" or 2" polyiso foam sold at Home Depot in 4x8 sheets. It made a world of difference to our 1/16" aluminum skin, going from a hollow gong when hitting the side to a solid thunk. Doesn't add much weight to the trailer and doesn't cost much. It is rated R13 at 2"
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